/Engine/Source/Runtime/CoreUObject/Public/Misc/AssetRegistryInterface.h
Multiple meanings of dependency are used in the AssetRegistry; the category specifes which meaning is referred to. During queries for dependencies, the Category variable can be a bitfield combination of Category values, in which case dependencies in any of the specified categories are returned.
namespace UE { namespace AssetRegistry { enum EDependencyCategory { Package = 0x01, Manage = 0x02, SearchableName = 0x04, None = 0x0, All = Package | Manage | SearchableName, } } }